Enhancements

New

ArcBlend - Creates a blend curve consisting of two arcs with adjustable endpoints and bulginess adjustment between two curves similar to BlendCrv.

ContinueCurve - Continues drawing as if you were still in the Curve command.

ContinueInterpCrv
- Continues drawing an interpolated curve as if you were still in the original InterpCrv command.

ExtractCurvatureGraph
- Creates a curve object that is the curvature graph.

IntersectTwoSets
- This variation of Intersect command allows selecting two sets of objects for finding intersections. The command finds only the intersection between the two groups, ignoring intersections between objects in the same group.

TweenCurves - Creates curves between two curves, averaging the parameters of the curves.

Enhancements

Arc

A new Length option allows defining an arc by center, start, and arc length.

New Start, Center,
Angle option.

StartPoint option added in more places.

UI tuneup for the Start,
End, Radius option.

Length: Added feedback to draw the center, startpoint, and the arc as you pick the length.

Now accepts negative numbers for the length which also sets the direction in the reverse of the current direction.

Circle

A new Orientation option sets the circle plane perpendicular to any picked direction.

A new Circumference option sets a center location and a value for the circumference.

A new Area option allows drawing a circle of a specified area.

The 3Point option has a new Radius option that draws a circle using two points
and a specified radius.

New

CreaseSplitting - By default, when a surface creation command, such as ExtudeCrv, Loft, and Sweep, uses input that has kinks, the result is a polysurface with edges at the kinks. If the option SplitAlongCreases=No, the result is a single surface.

New

New lightweight extrusion
solids save significant memory and improve display speed.
Extrusions are automatically
promoted to polysurfaces when
used as command input as needed.

CreateRegions - Select a polysurface whose surfaces bound solid regions in space. The input will be replaced with solid polysurfaces that form the regions. This command is typically used after the NonmanifoldMerge command.

NonmanifoldMerge
- Creates a non-manifold polysurface from
intersecting surfaces and polysurfaces, for export to
analysis programs and can cause normal Rhino
operations on these objects to fail.

TruncatedPyramid - Draws a pyramid whose apex is truncated by a plane. Similar to
TCone command.

Enhancements

BoundingBox - A new Output option results in solids, meshes, curves, or none.

Cone - A new Solid option determines whether the object is created as a solid or open.

CreateSolid -A new DeleteInput option has been added.

Cylinder - A new Solid option determines whether the object is created as a solid or open.

ExtrudeSrf and ExtrudeSrfTapered - A new SetBasePoint option allows picking two points to specify the extrusion distance.

OffsetSrf

A new Solid option with
Corners=Round/Sharp option now creates a solid from the original and the offset surface.

A new Distance option has been added.

A new DeleteInput option keeps the original object.

Pipe

A new FitRail option refits input curve.

Now accepts multiple curves
as input.

A new Thickness option sets the pipe wall thickness.
Negative numbers make the first radius the outer core.

History is now supported

Pyramid

The DirectionConstraint option has been improved.

A new Solid option.

The last-used number of
sides is saved.

Slab

A new BothSides option has been added.

A new InCPlane option offsets parallel to the construction plane.

Sphere - The FitPoints option now accepts control points as well as point objects as input.

TCone - A new Solid option determines whether the object is created as a solid or open.

Tube

Allows typing a negativeheight when picking the end of the tube.

A new Solid option determines whether the object is created as a solid or open.

A new WallThickness option has been added for selecting the tube thickness.